Adding Integers

Adding integers with same sign

The sum of two negative integers is always negative.

​

Ex. -5 + -10 = -15​

Two negative integers

The sum of two positive integers is always positive.​

​

Ex. 4 + 15 = 19​

Two positive integers

​Adding Integers with different signs

​To add integers with different signs, subtract their absolute values and take the sign of the larger number.

​

Example: -65 + 25 = -40

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Solve: -3 + 4 14 + -25 -94 + 36 18 + -75 -13 + 91​

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Subject | Subject

Some text here about the topic of discussion

Multiple Choice

-2 + 9

• -11

• -7

• 7

• 11

Match

Match the following

• -2 + -3 =

• 6 + 19 =

• -7 + -2 =

• 5 + 14 =

• -9 + -9 =

-5

25

-9

19

-18

• -5

• 25

• -9

• 19

• -18

Multiple Choice

-99 + 100 =

• 199

• -199

• 1

• -1

Multiple Choice

0 + -7

• -7

• 0

• 3

• 7

Multiple Choice

-7 + -4

• -11

• -3

• 3

• 11

Multiple Choice

-3 + 12

• -15

• -9

• 9

• 15

Multiple Choice

-8 + 3

• -11

• -5

• 5

• 11

Multiple Choice

3 + -7

• 10

• 4

• -10

• -4

Multiple Choice

-9 + (-5)

• -14

• 14

• -4

Multiple Choice

2 + (-21) 

• 19

• -19

• -23

• 23

Multiple Choice

-22 + (-9)

• -11

• -31

• 11

• 31

Multiple Choice

-4 + (-3) = ?

• 7

• 1

• -1

• -7

Multiple Choice

7 + 2 + (-10) = ?

• 4
• 1
• -1
• 19

Multiple Choice

$$-8+20$$ =

• $$-28$$  

• $$28$$  

• $$14$$  

• $$12$$  

Multiple Choice

$$-10+10$$  =

• $$20$$  

• $$0$$  

• $$-20$$  

• $$1,000,000$$  

Multiple Choice

When you add opposites, what do you get? For example -5+5

• 0

• A negative number

• Attraction

• You cannot add opposites

Multiple Choice

-14 + (-3)

• -17

• 11

• -11

• 17

Multiple Choice

A submarine at -32 feet dives down 18 feet. After the dive, what will be the submarines elevation?

• 14

• -14

• -50

• 50

Multiple Choice

A football team gained 9 yards on one play and then lost 22 yards on the next. Write a sum of integers to find the overall change in field position.

• -9 + (-22) = -13

• 9 + (-22) = 13

• 9 + (-22) = -13

• none

Multiple Choice

Bob lost 5 points on page one of his math test and he lost 9 points on page two of his math test.  Which equation best describes Bob progress on his math test?

• 5 + 9 = 14

• -5 + -9 = -4

• -5 + -9 = -14

• 5 + -9 = -4

Multiple Choice

When you add two negative integers you get a _________ sum.

• neutral

• positive

• negative

• zero

Multiple Choice

At 2pm, the temperature was 15 degrees. By midnight, the temperature dropped by 30 degrees. What is the temperature at midnight?

• 45 degrees

• -45 degrees

• 15 degrees

• -15 degrees